Note that your service extends the GWT marker interface RemoteService.

注意，服务扩展了GWT标记器接口RemoteService。

youdao

Having to extend EJBObject doesn't seem so bad, because that's just a typical marker interface.

扩展EJBObject好像并不坏，因为它只是一个典型的标记接口。

youdao

For one, the class must implement the interface com.google.gwt.user.client.rpc.IsSerializable, which is a marker interface, defining no methods.

举例来说，该类必须实现接口com . google . gwt . user . client . rpc . IsSerializable，该接口是一个标记接口，不定义任何方法。

youdao